Yes, a Japan Rail (JR) Pass will get you from Tokyo to Kyoto using the Tokaido Shinkansen (bullet train), but with one specific restriction: you cannot board the "Nozomi" or "Mizuho" trains, which are the absolute fastest services. Instead, you must use the Hikari or Kodama trains. The Hikari takes about 2 hours and 40 minutes—only about 20 minutes longer than the Nozomi—and the journey is fully covered by the pass. In 2026, it is important to calculate your costs before buying a pass, as the 2023 price hike means a 7-day pass is only worth it if you are doing at least one other major long-distance trip (like to Hiroshima or Kanazawa). If you are only doing a single round-trip between Tokyo and Kyoto, buying individual tickets is actually cheaper and allows you to use the faster Nozomi trains.
The cost of a First Class ticket varies wildly depending on the distance, the airline, and the "soft product" offered. For a domestic U.S. flight (e.g., New York to Florida), First Class typically costs between $400 and $1,200 round-trip, which is often 2 to 3 times the price of coach. However, for international long-haul travel, the prices reach another stratosphere. A "true" First Class suite on airlines like Emirates, Singapore, or Etihad for a flight from the U.S. to Asia or the Middle East can cost between $12,000 and $30,000 or more. These "ultra-luxury" tickets include private cabins with doors, gourmet "dine-on-demand" meals, vintage champagne, and sometimes even onboard showers. In contrast, "International Business Class" (often confused with First) usually ranges from $3,000 to $8,000. Prices are highly seasonal; flying First Class during the Christmas holidays or major global events can double these estimates. For most travelers, the best way to "afford" these seats is through the strategic use of credit card points and airline miles, as the "retail" cash price is primarily targeted at high-net-worth individuals and corporate executives.